i-Cholesteryl Methyl Ether (VIII).--The above sirup mas dissolved in 60 ml. of absolute ethanol, 300 mg. 01 platinum oxide added and the hydrogendon carried out ctt atmospheric pressure. After 78% of the theoretical amount of hydrogen had lieen taken up, the reaetiou \topped and a small aniount of white solid began t o preripitate. The solution wa:, warmed, filtered and concentrated to '15 ml. The solid product weighed 1.9 g. ~ 6 1 and ~ ~melts ) Lashed, dried znd concentrated 3s described aboye. 'The residual material was refluxed with 5 mi. of collidine for three houri a n d proceswd ns in the conversion of 111 to V. The iolid residue was directly hydrolyzed by refluxing i n 50 t r d . of s
